The ScrollPartEnum type defines the parts in the
control's scrollbar. Use the ScrollPartVisible
property to specify the visible parts in the control's scroll bar. Use the ScrollPartCaption
property to specify the caption being displayed in any part of the control's
scrollbar. The control fires the ScrollButtonClick
event when the user clicks any button in the control's scrollbar.

Name

Value

Description

exExtentThumbPart

65536

The thumb-extension part.

exLeftB1Part

32768

(L1) The first additional button, in the left or top area. By default, this
button is hidden.

exLeftB2Part

16384

(L2) The second additional button, in the left or top area. By default, this
button is hidden.

exLeftB3Part

8192

(L3) The third additional button, in the left or top area. By default, this
button is hidden.

exLeftB4Part

4096

(L4) The forth additional button, in the left or top area. By default, this
button is hidden.

exLeftB5Part

2048

(L5) The fifth additional button, in the left or top area. By default, this
button is hidden.

exLeftBPart

1024

(<) The left or top button. By default, this button is visible.

exLowerBackPart

512

The area between the left/top button and the thumb. By default, this part is
visible.

exThumbPart

256

The thumb part or the scroll box region. By default, the thumb is visible.

exUpperBackPart

128

The area between the thumb and the right/bottom button. By default, this part is
visible.

exBackgroundPart

640

The union between the exLowerBackPart and the exUpperBackPart parts. By default,
this part is visible.

exRightBPart

64

(>) The right or down button. By default, this button is visible.

exRightB1Part

32

(R1) The first additional button in the right or down side. By default, this
button is hidden.

exRightB2Part

16

(R2) The second additional button in the right or down side. By default, this
button is hidden.

exRightB3Part

8

(R3) The third additional button in the right or down side. By default, this
button is hidden.

exRightB4Part

4

(R4) The forth additional button in the right or down side. By default, this
button is hidden

exRightB5Part

2

(R5) The fifth additional button in the right or down side. By default, this
button is hidden.

exRightB6Part

1

(R6) The sixth additional button in the right or down side. By default, this
button is hidden.